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US Patent 7483280 Capacitive power supply circuit and method

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Patent
Patent

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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7483280
Date of Patent
January 27, 2009
Patent Application Number
11202642
Date Filed
August 11, 2005
Patent Primary Examiner
‌
Bao Q. Vu
Patent abstract

A capacitive power supply circuit, comprising a power storage element between two output terminals for providing a rectified output voltage; in series between a first input terminal for applying an A.C. voltage and a first of the output terminals, at least one capacitor and a first diode; a switch controllable by application of a signal on a triggering terminal; and means for controlling said switch to the on state when the output voltage is in a predetermined range of values.

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